Polar M600 vs. Garmin 645 Music vs. Garmin Vivosmart 4 vs. Amazfit GTR vs. Fitbit Inspire 3

 
M600
645 Music
Vivosmart 4
GTR
Inspire 3
 PolarM600Remove Buy NowGarmin645 MusicRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitGTRRemove Buy NowFitbitInspire 3Remove Buy Now

Basic Info

Suggested Price$330$450$130$199$100
Release20162018201820192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days7 days7 days24 days10 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240240 x 24048 x 128454 x 45432x18
Size1.3 inches1.2 inches0.74 inches1.39 inches46 inches
Touchn/a
TypeTFTMIPOLEDAMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearBuild-in
Apps
Music

All Wearables